Fiber-stock-refining apparatus



Oct. 8, 1929. J. A. WIENER FIBER STOCK HEF'INING APPARATUS 2 Sheets-Sheet 2 Filed Dec.- 12, 1927 YE E Jo/mj wane! M N. m mm Patented Oct. 8, 1929 JOHN A. WIENER, F LAUREL, MISSISSIPPI FIBER-STOCK-BEFINING APPARATUS v App11cati pn fl1ed December 12, 1927. Serial No. 239,275.

stock results. In order to cause the stock' to flow against the natural flow induced by the pump-like action of the engine, it isnecessary to supply positive impelling means for the stock. In accordance with my present invention, impeller blades are formed or secured on the larger end of the Jordan plug in such a manner that the stock is forced from the large end of the Jordan to the small end, with markedly increased refining efliciency' It is therefore an object of this invention to provide a refining apparatus of the Jordan engine type, wherein means are provided for increasing the refining efiiciency thereof by reversing the direction of flow of the stock from that normally taken.

Other and further important objects of this invention will be apparent from the disclosures in the specification and the accompanying drawings.

This invention (in a preferred form) is illustrated in the drawings and hereinafter more fully described. On the drawings: Figure 1 is a top plan view of a fiber stock refining apparatus embodying the principles of my invention;

Figure 2 is a sectional view taken on line 11-11 of Figure 1;

Figure 3 is an enlarged sectional view taken on line III-III of Figure 2;

Figure 4 is an enlarged sectional view taken on line IV-IV of Figure 2.

The reference numeral 1 indicates a base or pedestal adapted to support a fiber stock refining apparatus of the Jordan type, indi- 60 cated as a whole by the reference numeral 2.

Said refining apparatus 2 comprises an'outer shell 3 having a frusto-conicalbore 4 extending throughout its length. Bed knives 5 of suitable metal v are adapted to be formed lengthwise of said bore 4 but may suitably be made separately and secured therein in any desired manner. An end section 6 is secured to said shell 3 at the larger end of the bore 4 and provides an inlet passage 7 and chamber 8 for the introduction of pulp stock 50 through an opening 9 into the bore 4. Another end section 10 having an outlet port 11 communicating by way of an annular passage 12 with the bore 4 is secured at the other end of said casing 3. Both end sections 6 and 10 are bored as at 13 and 14 respectively to receive a shaft 15, packing glands 16 and 17 bfillig provided to prevent leakage around the s a t.

A grinding plug 18 is adapted to be keyed upon the shaft15 for rotation within the bore 4. Said plug 18 is also of frusto-con-ical shape but considerably shorter than the bore 4 to provide for longitudinal adjustment, as will later be explained. Said plug 18 carries spaced knives 19 extending in parallel rows throughout the length of the plug. The knives 19 may be either integrally formed .with the core 18 or made separately and secured thereto. The blades or knives 19 must so of course be accurately ground to correspond in pitch with the bed plate knives 5, so that stock passing between the two sets of knives may be refined to the desired degree.

The shaft 15 is journaled in bearings 20 and 21 slidably mounted in bearing pedestals 22 and 23 respectively. The bearings 21 are rigidly secured in a cage 24 slidable within a slot 25 formed in the pedestal 23. A threaded shaft 26, secured at one end to the cage 24, extends through a head 27 closing the slot 25 and is provided at its outer extended end with a wheel 28. Said wheel 28 is threaded upon the extended end of the shaft 26 and held against longitudinal movement by means of a plate 29 on the head 27. Said wheel 28 thus serves to adjust the position of the plug 18 within the bore 4 to de termine the distance between the respective knives 5 and 19.

The present invention consists in providing impeller blades 30 upon the larger end of the plug 18 to serve to force the stock between the respective knives 5 and 19. Each of said impeller blades 30 comprises a curved plate securely mounted upon the larger end a of the plug 18 and'extending to the periphcry of said core. Said impeller blades 30, however, terminate short of the shaft 15 to provide an opening substantially co-extenslve with the opening 9 for the admission of stock.

The curvature of the blades throws the stock outwardly in the same manner as a pump runner and thus forces the stock through the space between the core 18 and the surface of the bore 4. The stock is discharged through the ports 12 and the discharge port 11. 7

The direction which the stock takes in passing through the refining apparatus 2 is thus seen to be opposite to that which the stock takes in the usual refining engines of the J ordan type. It has been found, however, that -the efliciency of the refining apparatus is greater in apparatus constructed in accordance with my invention. It has further been found that less power isrequired to drive a refining engine of'the Jordan type when provided with impellers such as describedQthan is required for the usual Jordan.

I amaware that manychanges may be made and numerous details of construction may be varied through a wide range without departing from the principles of this invention, and I, therefore, do not purpose limiting the patent granted hereon otherwise than necessitated by the prior art.

I claim as my invention 1. Fiber stock refining apparatus, compris ing a shell having a frusto-com'cal shaped bore, a frusto-conical plug rotatably mounted in said bore and impeller blades secured on the larger end of said plug to force stock through to the smaller end between the surface of said rotating plug and-the inner surface of said shell.

2, In a fiber stock refining apparatus of the Jordan type, a frusto-conical plug having impeller blades formed on its larger end to force the stock in an opposite direction to that normally taken.

3. In a Jordan engine, a frusto-conical plug and plurality of curv'ed impeller blades projecting from the larger end of said plug and extending to the periphery thereof, said blades terminating short of the axis of said plug.

In testimony whereof I have hereunto subscribed my name at Laurel, Jones County,

JOHN A. WIENER. 

